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Finding the Fourth Proportional to 658,871.71, 908,564.11 and 563,693.47

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Solution

The fourth proportional to 658,871.71, 908,564.11 and 563,693.47 is: 777,316.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,871.71 : 908,564.11 = 563,693.47 : x
  2. Step 2: Convert to fraction form
    658,871.71/908,564.11 = 563,693.47/x
  3. Step 3: Cross multiply
    658,871.71x = 908,564.11 × 563,693.47
  4. Step 4: Simplify right side
    658,871.71x = 512,151,655,883.36
  5. Step 5: Solve for x
    x = 512,151,655,883.36/658,871.71
  6. Step 6: Final answer
    x = 777,316.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.